61429161 has 4 divisors (see below), whose sum is σ = 81905552. Its totient is φ = 40952772.

The previous prime is 61429153. The next prime is 61429169. The reversal of 61429161 is 16192416.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (61429153) and next prime (61429169).

It is not a de Polignac number, because 61429161 - 2³ = 61429153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61429169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10238191 + ... + 10238196.

It is an arithmetic number, because the mean of its divisors is an integer number (20476388).

Almost surely, 2^61429161 is an apocalyptic number.

It is an amenable number.

61429161 is a deficient number, since it is larger than the sum of its proper divisors (20476391).

61429161 is a wasteful number, since it uses less digits than its factorization.

61429161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20476390.

The product of its digits is 2592, while the sum is 30.

The square root of 61429161 is about 7837.6757396565. The cubic root of 61429161 is about 394.5707262985.

The spelling of 61429161 in words is "sixty-one million, four hundred twenty-nine thousand, one hundred sixty-one".